US President Donald Trump addresses the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Lucas Jackson

Turkey's President Recep Tayyip Erdogan holds up a photograph as he addresses the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Carlo Allegri

Brazil's President Jair Bolsonaro addresses the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Lucas Jackson

Pakistan's Prime Minister Imran Kahn attends the start of the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Carlo Allegri

German Chancellor Angela Merkel watches during the opening of the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Carlo Allegri

United Nations Secretary General Antonio Guterres addresses the opening of the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Carlo Allegri

US President Donald Trump holds a bilateral meeting with British Prime Minister Boris Johnson on the sidelines of the annual United Nations General Assembly in New York City, New York, US, September 24, 2019. REUTERS/Jonathan Ernst

Palestinian President Mahmoud Abbas arrives ahead of the start of the 74th session of the United Nations General Assembly at UN headquarters in New York City, New York, US, September 24, 2019. REUTERS/Yana Paskova

French President Emmanuel Macron shakes hands with Iranian President Hassan Rouhani during their meeting on the sidelines of the United Nations General Assembly in New York, US, September 23, 2019. REUTERS/John Irish

Muslims attend an Eid al-Adha mass prayer, marking the end of the haj pilgrimage near Moscow's grand mosque in Russia August 11, 2019. REUTERS/Maxim Shemetov